monero-lws/src/scanner.h

59 lines
2.4 KiB
C++

// Copyright (c) 2018-2020, The Monero Project
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#pragma once
#include <atomic>
#include <boost/optional/optional.hpp>
#include <cstdint>
#include <string>
#include "db/storage.h"
#include "rpc/client.h"
namespace lws
{
//! Scans all active `db::account`s. Detects if another process changes active list.
class scanner
{
static std::atomic<bool> running;
scanner() = delete;
public:
//! Use `client` to sync blockchain data, and \return client if successful.
static expect<rpc::client> sync(db::storage disk, rpc::client client);
//! Poll daemon until `stop()` is called, using `thread_count` threads.
static void run(db::storage disk, rpc::context ctx, std::size_t thread_count);
//! \return True if `stop()` has never been called.
static bool is_running() noexcept { return running; }
//! Stops all scanner instances globally.
static void stop() noexcept { running = false; }
};
} // lws